a. that makes shoes completely waterproof. - Researchers have developed a substance, b. for scientific research. - The government has cut funding, c. that he would have to repeat the experiment. - The scientist concluded, d. the analysis of blood samples. - One part of her job is carrying out, e. science teachers. - Schools currently do not have enough, f. are being analysed in a laboratory. - Samples of water from the river, g. but they got the same results. - They used different methods of calculation, , h. so they had to wear masks. - A toxic gas was released during the experiment,, i. as soon as it cooled. - The liquid became a solid,

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